5 ms·

I am looking out my hotel room window in Hiroshima in this very instant, and I even got my wife to confirm it: The traffic lights definitely are GREEN.

by vages 3y ago

doubled112 3y ago
I'm glad you mentioned that you had your wife confirm, because I'm convinced my wife sees more colours than I do, and I can't be the only one. I've had this exact discussion. What colour is this? Blue. No, can't you see it's green? Maybe it has some green in it Okay, so is it blue or green? Yes! Why did you ask me then?
- Izkata 3y ago
  Maybe not more colors, but more easily distinguishes them: https://www.psychologytoday.com/intl/blog/brain-babble/201504/when-it-comes-to-color-men-women-arent-seeing-eye-to-eye https://www.psychologytoday.com/intl/blog/brain-babble/20150... This is different from tetrachromacy, where some women really do see more colors: https://www.optimax.co.uk/blog/tetrachromacy-superhuman-vision/ https://www.optimax.co.uk/blog/tetrachromacy-superhuman-visi...
  - galangalalgol 3y ago
    The mothers of some red-green colorblind children are tetra chromatic, so they actually see more. I think hexa chromatic also exists. Edit: somehow didn't notice you'd linked this.
    - Izkata 3y ago
      I edited it in like under a minute afterwards, you may have opened the page right in the middle. I don't usually bother with an "Edit:" note if it's that fast.
- chrisdsaldivar 3y ago
  Yes, on average women can perceive more colors than men [1] Anecdotally, in high school we all took this test for a class [2] and the girls did a lot better than us. Although some guys were able to score pretty well on it. I don’t remember if this was the exact test but it’s very similar. [1] https://pubmed.ncbi.nlm.nih.gov/21675035/ https://pubmed.ncbi.nlm.nih.gov/21675035/ [2] https://www.xrite.com/hue-test https://www.xrite.com/hue-test
  - wayfinder 3y ago
    As a dude who scores perfect on these color tests (this is my superpower), it’s funny on male-dominated places like here and reddit when people discuss logo color changes. They’re always long threads of very confident people saying how there isn’t even a difference and I’m like lol
  - Aloha 3y ago
    Apparently my color perception is as good as I've always thought it was. I scored a 0 on that.
  - irrational 3y ago
    Oh, I’ve taken that test before. I’m a man, but I got a perfect score. I’ve always had a very easy time distinguishing shades and hues of color.
  - rottencupcakes 3y ago
    I scored a 6, but their lack of data on the distribution of scores makes that pretty hard to interpret. Does anybody know how to read that?
  - dylan604 3y ago
    >[2] https://www.xrite.com/hue-test https://www.xrite.com/hue-test " Best Score for your Gender -1000000 Worst Score for your Gender 1700045439 About your score: A lower score is better, with ZERO being a perfect score. The circle graph displays the regions of the color spectrum where your hue discrimination is low." I hate this kind of stuff. WTF is that Best Score?
- TacticalCoder 3y ago
  > because I'm convinced my wife sees more colours than I do A sizeable percentage of women have tetrachromy (5% ? I forgot the exact number but it's not nothing). AFAIR men do not have tetrachromy. So, basically, some women do actually see more colours than all the men and than most other women. Maybe your wife has tetrachromic vision? (not sure how it's called)
arp242 3y ago
Please report the exact wavelength for verification.
- xattt 3y ago
  … in electron-volts to the precision of 10 decimal places.
- dylan604 3y ago
  There's an app for that
- jrockway 3y ago
  Colors are not necessarily a single wavelength, and the human visual system can't distinguish between identical "tristimulus" caused by a single wavelength or a mixture of wavelengths. This is why color monitors with red, green, and blue pixels work. The red, green, and blue are designed to stimulate your long, medium, and short wavelength receptors. Models like CIE1931 map wavelengths to tristimulus values, which your monitor then maps to the right intensity of its red, green, and blue. (Display technology is, of course, imperfect. You can see redder reds, greener greens, and bluer blues than your monitor can emit, though newer monitors with Adobe RGB or DCI-P3 have redder reds. It's also possible that the green light from your monitor is not perfectly stimulating only your medium wavelength receptors.) Some colors that look very real cannot be a single wavelength of light, like magenta. That color is a figment of our imaginations. (Rather, there is no wavelength of light that stimulates your long wave receptors and short wave receptors without stimulating the medium wave receptors. But, magenta does, because it's actually a blue wavelength and a red wavelength.)
  - arp242 3y ago
    Stop ruining my jokes with facts!

I am looking out my hotel room window in Hiroshima in this very instant, and I even got my wife to confirm it: The traffic lights definitely are GREEN.

by vages 3y ago

I am looking out my hotel room window in Hiroshima in this very instant, and I even got my wife to confirm it: The traffic lights definitely are GREEN.

doubled112 3y ago

I'm glad you mentioned that you had your wife confirm, because I'm convinced my wife sees more colours than I do, and I can't be the only one. I've had this exact discussion. What colour is this? Blue. No, can't you see it's green? Maybe it has some green in it Okay, so is it blue or green? Yes! Why did you ask me then?

Izkata 3y ago
Maybe not more colors, but more easily distinguishes them: https://www.psychologytoday.com/intl/blog/brain-babble/201504/when-it-comes-to-color-men-women-arent-seeing-eye-to-eye https://www.psychologytoday.com/intl/blog/brain-babble/20150... This is different from tetrachromacy, where some women really do see more colors: https://www.optimax.co.uk/blog/tetrachromacy-superhuman-vision/ https://www.optimax.co.uk/blog/tetrachromacy-superhuman-visi...
- galangalalgol 3y ago
  The mothers of some red-green colorblind children are tetra chromatic, so they actually see more. I think hexa chromatic also exists. Edit: somehow didn't notice you'd linked this.
  - Izkata 3y ago
    I edited it in like under a minute afterwards, you may have opened the page right in the middle. I don't usually bother with an "Edit:" note if it's that fast.
chrisdsaldivar 3y ago
Yes, on average women can perceive more colors than men [1] Anecdotally, in high school we all took this test for a class [2] and the girls did a lot better than us. Although some guys were able to score pretty well on it. I don’t remember if this was the exact test but it’s very similar. [1] https://pubmed.ncbi.nlm.nih.gov/21675035/ https://pubmed.ncbi.nlm.nih.gov/21675035/ [2] https://www.xrite.com/hue-test https://www.xrite.com/hue-test
- wayfinder 3y ago
  As a dude who scores perfect on these color tests (this is my superpower), it’s funny on male-dominated places like here and reddit when people discuss logo color changes. They’re always long threads of very confident people saying how there isn’t even a difference and I’m like lol
- Aloha 3y ago
  Apparently my color perception is as good as I've always thought it was. I scored a 0 on that.
- irrational 3y ago
  Oh, I’ve taken that test before. I’m a man, but I got a perfect score. I’ve always had a very easy time distinguishing shades and hues of color.
- rottencupcakes 3y ago
  I scored a 6, but their lack of data on the distribution of scores makes that pretty hard to interpret. Does anybody know how to read that?
- dylan604 3y ago
  >[2] https://www.xrite.com/hue-test https://www.xrite.com/hue-test " Best Score for your Gender -1000000 Worst Score for your Gender 1700045439 About your score: A lower score is better, with ZERO being a perfect score. The circle graph displays the regions of the color spectrum where your hue discrimination is low." I hate this kind of stuff. WTF is that Best Score?
TacticalCoder 3y ago
> because I'm convinced my wife sees more colours than I do A sizeable percentage of women have tetrachromy (5% ? I forgot the exact number but it's not nothing). AFAIR men do not have tetrachromy. So, basically, some women do actually see more colours than all the men and than most other women. Maybe your wife has tetrachromic vision? (not sure how it's called)

arp242 3y ago

Please report the exact wavelength for verification.

xattt 3y ago
… in electron-volts to the precision of 10 decimal places.
dylan604 3y ago
There's an app for that
jrockway 3y ago
Colors are not necessarily a single wavelength, and the human visual system can't distinguish between identical "tristimulus" caused by a single wavelength or a mixture of wavelengths. This is why color monitors with red, green, and blue pixels work. The red, green, and blue are designed to stimulate your long, medium, and short wavelength receptors. Models like CIE1931 map wavelengths to tristimulus values, which your monitor then maps to the right intensity of its red, green, and blue. (Display technology is, of course, imperfect. You can see redder reds, greener greens, and bluer blues than your monitor can emit, though newer monitors with Adobe RGB or DCI-P3 have redder reds. It's also possible that the green light from your monitor is not perfectly stimulating only your medium wavelength receptors.) Some colors that look very real cannot be a single wavelength of light, like magenta. That color is a figment of our imaginations. (Rather, there is no wavelength of light that stimulates your long wave receptors and short wave receptors without stimulating the medium wave receptors. But, magenta does, because it's actually a blue wavelength and a red wavelength.)
- arp242 3y ago
  Stop ruining my jokes with facts!